Antenor assorati



' UNITED STATES ANTENOR ASSORATI, OF NEW PATENT f OFFICE.

YORK, N. Y., ASSIGNOR TO RAFAEL R. GOVIN, OF SAME PLACE.

SPIKE.

SPECIFICATION forming part of Letters Patent No. 525,576, dated September 4, 1894. Application filed January 4, 1894. Serial No. 495.590. (No model.)

To a/Z'Z whom it may concern:

Be 1t known that I, ANTENOR AssoRATi, a resident of NewYork, in the county and State of New York, have invented a new and useful Improvement in Spikes and Nails, of which the following is a specication.

lvly invention relates to an improvement in spikes and nails in which provision is made for locking the spike or nail against liability to unintentionally work out of the wood or other material in which it is driven and at the same time permit of ready intentional removal.

My invention is also applicable to the shanks of les or other tools which are commonly inserted in wooden handles and in general to any fastening device which is adapted to be driven into a more or less yielding substance. ,i

In the accompanying drawings, Figure l represents a railway spike, partially driven into a railway tie. Fig. 2 shows the same when driven home. Fig. 3 represents the same when turned in its Socket to permit it io be withdrawn and Figs. 4, 5 and 6 represent modified forms of ordinary spikes or nails.

Referring to Figs. l, 2 and 3; A represents the body of the spike, a its head and a its point. Intermediate of its head and pointpreferably in proximity to its point-the body A is provided with a slight recess a2 formed on lone side of the body so as to leave a shoulder at the upper and lower end of the recess and a short distance from the lower end of said recess there is formed a laterally extending rib or lug a3 projecting laterally from the bottom of the recess.

A separable spur B, gradually diminishing 1n size from its upper to its lower end, is tted on its side toward the body of the spike to seat within the recess a2 with its larger upper end projecting out of the recess and it is provided with a notch b near its lower end to receive the rib or lug a3 on the body of the spike. The lower end of the removable spur B is, when the parts are assembled, intended to extend outwardly only about even with the body of the spike, adjacent to the recess, and the side of the spur B toward the spike is preferably curved to conform to the rounded body of the spike.

From the above structure, it follows that when the spike is driven into the tie O it will force the spur B along with it but the projecting upper end of the spur will form an obstruction to the removal or working loose of the spike, so long as it retains its position locked to the body of the spike. When, however, it is desired to draw the spike from the wood, it may be turned half round in its socket into the position shown in Fig. 3, which Y movement will throw the spur B out of engagement with the recess in the body of the spike, the latter being then free to be with` drawn from the tie.

In the form snown in Fig. 4, the body A of the angular headed nail is provided with a recess D which has no rib or lug projecting from the bottom of the recess and the spur B. is forced into the Wood, together with the body of the nail, simply by its bearing against the shoulder at the upper end of the recess D.

In the form shown in Fig. 5, the body A2 of the nail is provided with a recess D', having at its lower end an under-cut d in which the lower end of a metallic spur B2 is received. The spur B2 is conveniently formed by a piece of thin metal, turned from its upper end doignwardly and then upwardly, as shown at In the form shown in Fig. 6,the body A3 of the nail is provided with a recess D quite similar to the recess formed in the body A', shown in Fig. 4, and the metallic spur B3 is formed in a manner quite similar vto that represented in Fig. 5 with the exception that the return bend b2 is extended downwardly to the lower end of the body portion of the spur.

In the form shown in Figs. 1, 2 and 3, the removable spur will require to be held in position until the point of the spike has entered into the material into which it is driven, far enough to hold vthe spur in place. The same will be true of the form shown in Fig. 4, but in Figs. 5 and G-particularly the form shown in Fig. -the metallic spur will have sufficient frictional contact to hold itself in position while the nail is being driven.

By the above construction, I am enabled to IOO secure the retaining advantages of a spur on the body of the nail and at the same time am enabled to secure the'advantages of a smooth body nail for purposes of removing it from its driven position.

What I claim isl; The combination with the body of a fastening device adapted to be driven into more or less yielding material and provided with a recess in one of its sides terminating in shoulders at its opposite ends and opening freely to the bodyfof the spike at its opposite sides, of a removable spur fitted to seat against the body of the fastening device Within said recess and having an engagement with the upper and lower ends of the recess' to prevent its displacement in a longitudinal direction,

recess in its side and a rib or lug projectingfrom the bottom of the recess, of a removable spur fitted to seat within the recess in the body of the fastening device and provided with a notch adapted to receive said rib or lug on the body of the fastening device, substantially as set forth.

ANTENOR ASSORATI.

KVVitnesses:

P. PIOVERNINI, FREDK. HAYNES. 

